ref: 118a57045bf5b49ab7c2f7f930543b9217fd422e
parent: c12398fe812e75173ff5df43bb283a7d80d88b75
author: Johann <johannkoenig@google.com>
date: Mon Mar 5 09:27:04 EST 2018
use intrinsics for 'emms' BUG=webm:1500 Change-Id: I3235d8c2abc01dd3a35e14c5cbcfe20283ff8fb2
--- a/test/clear_system_state.h
+++ b/test/clear_system_state.h
@@ -11,19 +11,13 @@
#define TEST_CLEAR_SYSTEM_STATE_H_
#include "./vpx_config.h"
-#if ARCH_X86 || ARCH_X86_64
-#include "vpx_ports/x86.h"
-#endif
+#include "vpx_ports/system_state.h"
namespace libvpx_test {// Reset system to a known state. This function should be used for all non-API
// test cases.
-inline void ClearSystemState() {-#if ARCH_X86 || ARCH_X86_64
- vpx_reset_mmx_state();
-#endif
-}
+inline void ClearSystemState() { vpx_clear_system_state(); }} // namespace libvpx_test
#endif // TEST_CLEAR_SYSTEM_STATE_H_
--- a/vpx_ports/emms.asm
+++ b/vpx_ports/emms.asm
@@ -12,11 +12,6 @@
%include "vpx_ports/x86_abi_support.asm"
section .text
-global sym(vpx_reset_mmx_state) PRIVATE
-sym(vpx_reset_mmx_state):
- emms
- ret
-
%if LIBVPX_YASM_WIN64
global sym(vpx_winx64_fldcw) PRIVATE
--- /dev/null
+++ b/vpx_ports/emms_mmx.c
@@ -1,0 +1,13 @@
+/*
+ * Copyright (c) 2018 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <mmintrin.h>
+
+void vpx_clear_system_state() { _mm_empty(); }--- a/vpx_ports/system_state.h
+++ b/vpx_ports/system_state.h
@@ -13,10 +13,18 @@
#include "./vpx_config.h"
-#if ARCH_X86 || ARCH_X86_64
-void vpx_reset_mmx_state(void);
-#define vpx_clear_system_state() vpx_reset_mmx_state()
+#ifdef __cplusplus
+extern "C" {+#endif
+
+#if HAVE_MMX
+extern void vpx_clear_system_state();
#else
#define vpx_clear_system_state()
-#endif // ARCH_X86 || ARCH_X86_64
+#endif // HAVE_MMX
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
#endif // VPX_PORTS_SYSTEM_STATE_H_
--- a/vpx_ports/vpx_ports.mk
+++ b/vpx_ports/vpx_ports.mk
@@ -17,6 +17,8 @@
PORTS_SRCS-yes += system_state.h
PORTS_SRCS-yes += vpx_timer.h
+PORTS_SRCS-$(HAVE_MMX) += emms_mmx.c
+
ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
PORTS_SRCS-yes += emms.asm
PORTS_SRCS-yes += x86.h
--- a/vpx_ports/x86.h
+++ b/vpx_ports/x86.h
@@ -317,8 +317,6 @@
return mode;
}
-extern void vpx_reset_mmx_state(void);
-
#ifdef __cplusplus
} // extern "C"
#endif